Chief Cook/Bottle WasherBronze Supporter

Well-Known Member

Hmm. Makes me wonder about the history of the brass. If they were both fired in the same firearm, they should both have the same shoulder profile and it doesn't appear that that is so. If it were me, I'd probably send that pic off to the manufacturer. No expectation that they would do anything about the brass, but they might look into their QA process.

American

I dont know what the profile of that case is supposed to look like, but to me it appears that perhaps the one on the left got squished in the crimp stage and didnt fire form all the way out.
edit:
looked closer and I have to agree with previous posts, or perhaps it was a .40 that has been converted.

Active Member

It's stamped .357 Sig. Thats the shape they're supposed to be....minus the rim area. Won't even fit in a shellholder is how I caught it. I usually go through all my brass AFTER I resize/decap since thats where I get the most splits and what not anyways.

New Member

The .357 SIG pistol cartridge is the product of Swiss-German firearms manufacturer SIG Sauer, in cooperation with the American ammunition manufacturer Federal Cartridge. While it is based on a .40 S&W case necked down to accept 0.355-inch (9.0 mm) bullets, the .357 SIG brass is slightly longer (0.009-inch (0.23 mm) to 0.020-inch (0.51 mm)). The cartridge is used by a number of law enforcement agencies and has a good reputation for both accuracy and stopping power.

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